Apparently the celeb is reacting to two different external substances. Dr. Joseph clarified:

"One that's been added, another one that has been taken away."

It turns out that the momma-of-two has been having a bad reaction after switching her birth control pill. But, that wasn't the only thing messing with her system.

The docs also concluded that the MTV personality was suffering from marijuana withdrawals! It was the combination of ditching the drug and changing her contraception that brought on the medical mystery.

Watch as the pros explain the diagnosis in this clip from the show (below):